Prophet Hud - 11:29
O my people, I do not ask you for any money in return for this; my wages come only from Allah. Nor can I drive away the believers; they will meet their Lord. But I see you as a people in ignorance.
What is the intention?
The Repentance/9:34
O you who believe, most of the scribes and religious leaders eat the people´s money without right and lead them astray from the way of Allah. Give glad tidings of a painful torment to those who hoard gold and silver and spend it not in the way of Allah.
The Arabic Letter Sad/38:86
"Say, "I do not ask you for a wage in return for this; I am not an impostor."